

import com.alibaba.fastjson.JSON;

import com.alibaba.fastjson.JSONException;
import com.alibaba.fastjson.JSONObject;

public class JSONUtils {

public static void main(String[] args) {
    String json = "1{\"common\":{\"ar\":\"310000\",\"ba\":\"iPhone\",\"ch\":\"Appstore\",\"md\":\"iPhone Xs Max\",\"mid\":\"mid_10\",\"os\":\"iOS 13.3.1\",\"uid\":\"399\",\"vc\":\"v2.1.134\"},\"start\":{\"entry\":\"icon\",\"loading_time\":5698,\"open_ad_id\":20,\"open_ad_ms\":9180,\"open_ad_skip_ms\":0},\"ts\":1741568061000}";
    System.out.println(isJSONValidate(json));
}
    public static boolean isJSONValidate(String  obj) {
    try {
        JSON.parse(obj);
        return true;
    } catch (JSONException e) {
        return false;
    }
    }
}
//LogInterceptor